Stat
A stat may refer to any of the following:
1. Linux command, see the stat command reference for further information.
2. Abbreviation for statistic, a science enveloping the collection, analysis and interpretation of numerical data and presenting it in categorical and concise manner. For example, a website may record how often a page is visited and display the data in an easy-to-read format. These statistics can then be used to help sell advertisements on the site if the website is receiving enough traffic.

In text programs, the statistics may also be called "properties" or "summary" and display information about a file. For example, the picture shows the summary of a text file in Notepad++.
If you're looking to find the statistics of a text file or document, see: How to get a line count or other stats of a file.
3. In gaming, a stat or statistic is a particular attribute associated with a character or item. For example, the stats for a staff may provide additional fire damage, shadow damage or healing.